ramnit | 1259f1b131890a55b386b31542955ffb1bd469ee82c79e6ba32a3cd32bba5f9c

General

Target

JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe
Size

123KB
MD5

a1d01bd6cffcb16aaba8678b23144419
SHA1

453ea423682015c7421b8798b352e403ab082967
SHA256

1259f1b131890a55b386b31542955ffb1bd469ee82c79e6ba32a3cd32bba5f9c
SHA512

f93efe161237af6711deb2f909d6bc9d707860c343e3fdde244665696cf4bddebc74dff9b9844f8a9bdff7ad6ea6d4dd37969985a63ed2aae66bfd19626097b4
SSDEEP

768:i06R0UtgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9ICW:oR0Zn3Pc0LCH9MtbvabUDzJYWu3B

Score

10^/10

ramnit banker discovery spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit

Executes dropped EXE 1 IoCs

pid	Process
4572	WaterMark.exe

UPX packed file 13 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3720-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3720-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3720-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3720-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3720-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3720-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3720-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4572-25-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4572-23-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4572-32-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4572-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4572-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4572-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px9F7C.tmp	JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3144	1068	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156593"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "250352451"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443946167"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "248629386"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156593"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3A6D01AE-D564-11EF-A4B7-CA65FB447F0B} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe
4572	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4572	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3000	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3000	iexplore.exe
3000	iexplore.exe
4128	IEXPLORE.EXE
4128	IEXPLORE.EXE
4128	IEXPLORE.EXE
4128	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
3720	JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe
4572	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 4572	3720	JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe	82
PID 3720 wrote to memory of 4572	3720	JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe	82
PID 3720 wrote to memory of 4572	3720	JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe	82
PID 4572 wrote to memory of 1068	4572	WaterMark.exe	83
PID 4572 wrote to memory of 1068	4572	WaterMark.exe	83
PID 4572 wrote to memory of 1068	4572	WaterMark.exe	83
PID 4572 wrote to memory of 1068	4572	WaterMark.exe	83
PID 4572 wrote to memory of 1068	4572	WaterMark.exe	83
PID 4572 wrote to memory of 1068	4572	WaterMark.exe	83
PID 4572 wrote to memory of 1068	4572	WaterMark.exe	83
PID 4572 wrote to memory of 1068	4572	WaterMark.exe	83
PID 4572 wrote to memory of 1068	4572	WaterMark.exe	83
PID 4572 wrote to memory of 3000	4572	WaterMark.exe	87
PID 4572 wrote to memory of 3000	4572	WaterMark.exe	87
PID 4572 wrote to memory of 3972	4572	WaterMark.exe	88
PID 4572 wrote to memory of 3972	4572	WaterMark.exe	88
PID 3000 wrote to memory of 4128	3000	iexplore.exe	89
PID 3000 wrote to memory of 4128	3000	iexplore.exe	89
PID 3000 wrote to memory of 4128	3000	iexplore.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a1d01bd6cffcb16aaba8678b23144419.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3720
- C:\Program Files (x86)\Microsoft\WaterMark.exe
  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:4572
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:1068
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1068 -s 204
      4⤵
      Program crash
      PID:3144
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3000
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3000 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:4128
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:3972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1068 -ip 1068
1⤵
PID:5040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
123KB

MD5
a1d01bd6cffcb16aaba8678b23144419

SHA1
453ea423682015c7421b8798b352e403ab082967

SHA256
1259f1b131890a55b386b31542955ffb1bd469ee82c79e6ba32a3cd32bba5f9c

SHA512
f93efe161237af6711deb2f909d6bc9d707860c343e3fdde244665696cf4bddebc74dff9b9844f8a9bdff7ad6ea6d4dd37969985a63ed2aae66bfd19626097b4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
37827a5b375c40c1d7c482099e06c5bb

SHA1
48a43de39625e410113ec4d2d3e355535c7163a9

SHA256
ffbd974e64098b8a4b5abe5633fe019780fb5eb4fb52418810fbbdc50084ef51

SHA512
e14bdded02c844462222ce326d91cfc2403f2fb164911a7b1401cb5dcb29c804383cf554304a5ea8465d743ef2f0fa78e6cba3f064dad02cd00076c1ac5f843e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
b6f66a4c189b60aa3575eac7bd43da26

SHA1
c6c337c37e9f01c650f3b78aeff636f839380476

SHA256
a6ebdc4e32f7dd609ab953a5f9395bde5a764a10533aaed2918eb39304c86c57

SHA512
01929420eb653b94bcf6fd1a11457fa4e8b9836993ad757f6079701ce7390a572e31a0278d15ceee1fe74a611f5ea5b1f21f99ebd9605c8831cd017609ab14c1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\P2UT3MS5\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1068-28-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/1068-29-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/3720-7-0x0000000002C80000-0x0000000002C81000-memory.dmp

Filesize
4KB

Download
memory/3720-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3720-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3720-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3720-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3720-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3720-0-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/3720-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3720-2-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/3720-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3720-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/4572-26-0x00000000774B2000-0x00000000774B3000-memory.dmp

Filesize
4KB

Download
memory/4572-31-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/4572-32-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4572-30-0x00000000774B2000-0x00000000774B3000-memory.dmp

Filesize
4KB

Download
memory/4572-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4572-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4572-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4572-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4572-24-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/4572-25-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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